Pike 8.1 on amd64 with machine code, with double floats. Trying some heavy threading/muxing/locking/callbacks for a new and improved pgsql driver, I get this (consistently reproducible):

Bad offset: pc:0x7f92405be36c program:0x7f92408df050 (0x36e0)

Which doesn't seem right. Anything obvious I can do to help pinpoint this?